There are some periodic potentials
for which the Schrödinger equation leads to equations of
Heun family [1]}, [2]}, [3]}, [4]}, [5]}, [6]}. Solutions for these equations in general demand numerical computations. In this section we consider only some analytical aspects
concerning the solutions of the Schrödinger equation
for the associated Lamé potential
()
which depends on the parameters \(\mathbf {m}\)  and \(\mathbf {l}\) .
